Stainless steel pipe internal thread machining device

Abstract

The invention belongs to the field of pipe machining, and particularly relates to a stainless steel pipe inner thread machining device which comprises a machine tool body. A power assembly is installed in the middle of the machine tool body. The middle part of the power assembly is fixedly connected with a three-jaw chuck; an electric push rod is fixedly connected to the middle of the machine tool body. The output end of the electric push rod is fixedly connected with a fixed seat; the fixed seat is in sliding connection with the machine tool body; the middle part of the fixed seat is fixedly connected with a first connecting pipe; the middle part of the first connecting pipe is communicated with a liquid inlet pipe; the inner side wall of the first connecting pipe is rotationally connected with an auger; the end part of the auger is fixedly connected with a third connecting pipe; the third connecting pipe is rotationally connected with the first connecting pipe; and after the cutting fluid enters the liquid outlet pipe through the liquid inlet pipe, chippings can be flushed outwards from the interior of the stainless steel pipe, the chippings remaining in threads when the device machines the inner threads of the stainless steel pipe are reduced, and the convenience of the device for cleaning the stainless steel pipe is improved.

Description

Technical Field

[0001] The invention relates to the field of pipe processing, in particular to a stainless steel pipe internal thread processing device. Background Art

[0002] Stainless steel pipe is a hollow long round steel. Its surface has been specially treated to resist oxidation and corrosion, thereby maintaining a rust-free state for a long time. Stainless steel pipe is widely used in industrial fields such as petroleum, chemical, medical, food, light industry, mechanical instrumentation, etc. as a conveying pipeline and mechanical structure component due to its excellent corrosion resistance, high strength, good processing performance and beautiful appearance.

[0003] The processing flow of stainless steel pipes mainly includes the following steps: material preparation, forming, smelting and rolling, annealing, internal thread processing, finished product processing, surface treatment, finished product testing, packaging and delivery. Internal thread processing is one of the important steps in stainless steel pipe processing. Internal thread processing can ensure a tight connection between stainless steel pipes and other pipe fittings, valves or equipment with external threads.

[0004] During the existing processing of the internal threads of stainless steel pipes, it is usually necessary to spray cutting fluid on the processing surface to clean up the debris. During production and observation, it was found that when the cutting fluid is sprayed on the stainless steel surface, the cutting fluid that enters the stainless steel pipe will carry the debris and flow into the stainless steel, so that the processed stainless steel pipe threads will have debris remaining inside. It takes more working time to clean the inner wall of the stainless steel pipe, which makes the device more cumbersome to process the internal threads of the stainless steel pipe.

[0005] Therefore, in view of the above problems, a stainless steel pipe internal thread processing device is proposed. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the stainless steel pipe internal thread processing device described in the present invention comprises a machine tool body; a power assembly is installed in the middle of the machine tool body; a three-jaw chuck is installed in the middle of the power assembly; an electric push rod is fixedly connected to the middle of the machine tool body; the output end of the electric push rod is fixedly connected to a fixed seat; the fixed seat and the machine tool body are slidably connected; a first connecting pipe is fixedly connected to the middle of the fixing seat; the middle of the first connecting pipe is connected to a liquid inlet pipe; the inner side wall of the first connecting pipe is rotatably connected to the inner side wall of the first connecting pipe There is an auger; a third connecting pipe is fixedly connected to the end of the auger; the third connecting pipe and the first connecting pipe are both rotatably connected; the middle of the third connecting pipe is connected to the second connecting pipe; the middle of the second connecting pipe is connected to a plurality of liquid outlet pipes; the liquid outlet pipe is arranged in an arc shape; a tool is fixedly connected to the middle of the first connecting pipe; after the cutting fluid enters the liquid outlet pipe through the liquid inlet pipe, the debris will be flushed out from the inside of the stainless steel pipe, thereby reducing the debris remaining inside the thread when the device processes the internal thread of the stainless steel pipe, and improving the convenience of the device for cleaning the stainless steel pipe.

[0008] Preferably, a plurality of first elastic springs are fixedly connected to the inner wall of the first connecting tube; a first connecting plate is fixedly connected to the end of the adjacent first elastic spring; a square plate is fixedly connected to the top of the first connecting plate; the square plate and the first connecting tube are slidably connected and are arranged through; a plurality of first cleaning rods are fixedly connected to the top of the square plate; the first connecting plate will make the first cleaning rods approach the inner wall of the stainless steel tube and clean it under the action of water flow, further improving the cleaning ability of the device on the inner wall of the stainless steel tube, reducing debris attached to the inner wall of the stainless steel tube, and reducing the influence of debris accumulated on the inner wall of the stainless steel tube on the processing process.

[0009] Preferably, a plurality of first fixing grooves are provided in the middle of the first fixing grooves; a plurality of first spring telescopic rods are fixedly connected in the middle of the first fixing grooves; a cross plate is fixedly connected to the top of the adjacent first spring telescopic rods; a plurality of fixing holes are provided in the middle of the cross plate; the fixing holes and the first cleaning rod are correspondingly arranged and slidably connected; when the first cleaning rod slides along the first connecting tube along with the first connecting plate, the first cleaning rod will slide along the fixing hole and rub against the fixing hole, and the fixing hole will clean the debris attached to the surface of the first cleaning rod, thereby realizing the cleaning of the first cleaning rod by the device, and at the same time, when the first cleaning rod contacts the inner wall of the stainless steel tube, the first cleaning rod will be supported by the fixing hole and the bending curvature will be reduced, thereby increasing the contact area between the first cleaning rod and the stainless steel tube, and enhancing the cleaning effect of the first cleaning rod on the stainless steel tube.

[0010] Preferably, a plurality of second spring telescopic rods are fixedly connected to the middle part of the fixed seat; the ends of adjacent second spring telescopic rods are fixedly connected to second connecting plates; the middle part of the second connecting plate is fixedly connected to a perforated plate; the first connecting tube is located inside the perforated plate; the end of the perforated plate is fixedly connected to a first vertical plate; a plurality of second elastic springs are fixedly connected to the middle part of the first vertical plate; the ends of adjacent second elastic springs are fixedly connected to the second vertical plate; the debris splashed when the device processes the stainless steel pipe will be intercepted by the perforated plate, reducing the debris remaining on the surface of the device, and at the same time, when the tool grinds the inner wall of the stainless steel pipe, it will shake slightly under the action of extrusion, and the force will cause the second elastic spring to be in a bent state, and the second elastic spring will absorb this part of the kinetic energy, reducing the shaking of the second vertical plate when working, and improving the stability of the device when working.

[0011] Preferably, a pair of slides are fixedly connected to the middle of the orifice plate; the slides are of arc-shaped structure; a plurality of third spring telescopic rods are fixedly connected to the middle of the three-jaw chuck; a third connecting plate is fixedly connected to the end of the third spring telescopic rod; a convex rod is fixedly connected to the middle of the third connecting plate; a plurality of second cleaning rods are fixedly connected to the middle of the third connecting plate; the third connecting plate will drive the second cleaning rods to reciprocate along the orifice plate along with the convex rods and enable the second cleaning rods to dredge and clean the orifice plate, thereby realizing the cleaning of the orifice plate by the device, ensuring that the orifice plate can intercept debris and extending the service life of the orifice plate.

[0012] Preferably, a pair of second fixing grooves are provided in the middle of the second connecting plate; a plurality of damping springs are fixedly connected in the middle of the second fixing grooves; a baffle is fixedly connected to the top of the adjacent damping springs; when the protruding rod slides off the edge of the slide plate, it will be accelerated by the elastic force of the third spring telescopic rod, so that the protruding rod will hit the surface of the second connecting plate, and when the protruding rod moves, it will contact and hit the baffle, and after the baffle is impacted, the impact force will be transmitted to the damping spring, and the damping spring will be quickly compressed under the impact and absorb the impact energy during the compression process, and then the damping spring will transmit the attenuated impact force to the second connecting plate, thereby reducing the impact on the second connecting plate and extending the service life of the second connecting plate.

[0013] Preferably, a plurality of vertical poles are fixedly connected to the middle part of the baffle plate; a plurality of third fixed grooves are opened in the middle part of the second fixed groove; the third fixed groove and the vertical pole are correspondingly arranged and are slidably matched; a plurality of flexible plates are fixedly connected to the middle part of the third fixed groove; when the baffle plate is impacted, the vertical pole will move and enter the interior of the third fixed groove and contact the flexible plate. Because the flexible plate is a flexible material with a larger surface friction coefficient, the vertical pole will be subjected to additional friction when sliding inside the third fixed groove, reducing the displacement amplitude of the vertical pole and the baffle plate when impacted. At the same time, the third fixed groove can also fill the gap between the vertical pole and the third fixed groove, reducing the shaking of the vertical pole when the vertical pole moves, and also reducing the shaking amplitude of the baffle plate when impacted.

[0014] Preferably, a plurality of guide plates are fixedly connected to the middle portion of the second vertical plate; the guide plates are of an arc-shaped structure; when the second vertical plate moves toward the three-jaw chuck, the guide plates will come into contact with the surface of the stainless steel tube. Since the guide plates are of an arc-shaped structure, the stainless steel tube will continue to come into contact with the surface of the guide plates until the second vertical plate comes into contact with the three-jaw chuck, thereby reducing direct contact between the second vertical plate and the stainless steel tube when the second vertical plate moves, and reducing interference of the second vertical plate with the fixation of the stainless steel tube.

[0015] Preferably, a plurality of second balls are rotatably connected to the middle part of the guide plate; the second balls are located between the first connecting tube and the second vertical plate; when the stainless steel tube comes into contact with the guide plate, the second balls will also come into contact with the second balls, and the second balls will rotate under the action of friction, so that the sliding friction between the stainless steel tube and the guide plate is converted into rolling friction, thereby reducing the friction between the stainless steel tube and the guide plate, and reducing scratches or damage on the surface of the stainless steel tube caused by friction.

[0016] Preferably, a collecting box is fixedly connected to the middle of the fixing seat; a filter pad is fixedly connected to the inner wall of the collecting box; when the device processes the stainless steel pipe, the cutting waste liquid and splashed debris will flow out from the surface of the second connecting plate, and these solid-liquid mixtures will reach the interior of the collecting box and be filtered by the filter pad, the filter pad will filter the debris in the mixture, and the cutting waste liquid will reach the interior of the collecting box, thereby realizing the separation and collection of the debris and the cutting waste liquid by the device, and improving the utilization rate of the device.

[0017] The present invention is beneficial in that: 1. In the device for processing the internal thread of a stainless steel pipe described in the present invention, the cutting fluid enters the liquid outlet pipe through the liquid inlet pipe and washes the debris out from the inside of the stainless steel pipe, thereby reducing the debris remaining inside the thread when the device processes the internal thread of the stainless steel pipe and improving the convenience of the device for cleaning the stainless steel pipe.

[0018] 2. In the device for processing internal threads of a stainless steel pipe described in the present invention, the first connecting plate will make the first cleaning rod approach the inner wall of the stainless steel pipe and clean it under the action of water flow, further improving the cleaning ability of the device on the inner wall of the stainless steel pipe, reducing debris attached to the inner wall of the stainless steel pipe, and reducing the impact of debris accumulated on the inner wall of the stainless steel pipe on the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a main schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the fixing seat in the present invention; Figure 3 It is a structural schematic diagram of the orifice plate in the present invention; Figure 4 It is a structural schematic diagram of the auger in the present invention; Figure 5 is a schematic structural diagram of the first connecting plate in the present invention; Figure 6 is a schematic structural diagram of the second elastic spring in the present invention; Figure 7 is a schematic structural diagram of the third fixing groove in the present invention; Figure 8 is a schematic structural diagram of the third connecting plate in the present invention; Fig. 9 It is a schematic structural diagram of the convex rod in the present invention.

[0021] In the figure: 1, machine tool body; 102, power assembly; 103, three-jaw chuck; 104, electric push rod; 105, fixed seat; 106, first connecting pipe; 107, liquid inlet pipe; 108, second connecting pipe; 109, liquid outlet pipe; 110, auger; 111, tool; 112, third connecting pipe; 2, first elastic spring; 22, first connecting plate; 23, square plate; 24, first cleaning rod; 3, first fixing groove; 32, first spring telescopic rod; 33, horizontal plate; 34, fixing hole; 4, The second spring telescopic rod; 42, the second connecting plate; 43, the orifice plate; 44, the first vertical plate; 45, the second vertical plate; 46, the second elastic spring; 47, the first ball; 5, the slide plate; 52, the third spring telescopic rod; 53, the third connecting plate; 54, the protruding rod; 55, the second cleaning rod; 6, the second fixed groove; 62, the damping spring; 63, the baffle; 7, the vertical rod; 72, the third fixed groove; 73, the flexible plate; 8, the guide plate; 9, the second ball; 1001, the collecting box; 1002, the filter pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Specific examples are given below.

[0024] See also Figures 1 to 9As shown, a stainless steel pipe internal thread processing device according to an embodiment of the present invention comprises a machine tool body 1; a power assembly 102 is installed in the middle of the machine tool body 1; a three-jaw chuck 103 is installed in the middle of the power assembly 102; an electric push rod 104 is fixedly connected to the middle of the machine tool body 1; a fixed seat 105 is fixedly connected to the output end of the electric push rod 104; the fixed seat 105 and the machine tool body 1 are slidably connected; a first connecting pipe 106 is fixedly connected to the middle of the fixed seat 105; a liquid inlet pipe 107 is connected to the middle of the first connecting pipe 106; an auger 110 is rotatably connected to the inner side wall of the first connecting pipe 106; the end of the auger 110 is fixedly connected to the inner side wall of the first connecting pipe 106; A third connecting tube 112 is connected; the third connecting tube 112 and the first connecting tube 106 are both rotatably connected; the middle of the third connecting tube 112 is connected to the second connecting tube 108; the middle of the second connecting tube 108 is connected to a plurality of liquid outlet pipes 109; the liquid outlet pipes 109 are arranged in an arc shape; a tool 111 is fixedly connected to the middle of the first connecting tube 106; when working, the stainless steel pipe is sent into the interior of the three-jaw chuck 103 and fixed, and then the starting device starts the electric push rod 104. After the electric push rod 104 is started, it will drive the fixing seat 105 to bring the first connecting tube 106 closer to the stainless steel pipe, and when the first connecting tube 106 moves, it will bring the tool 111 along The power assembly 102 will rotate with the three-jaw chuck 103 and the stainless steel pipe. When the tool 111 comes into contact with the stainless steel pipe, the inner wall of the stainless steel pipe will be processed with internal threads. At the same time, the staff can connect the liquid inlet pipe 107 to an external water pump so that the cutting fluid flows from the liquid inlet pipe 107 into the first connecting pipe 106. When the cutting fluid flows in the first connecting pipe 106, the auger 110 will rotate under the action of the water flow. When the auger 110 rotates, it will also drive the third connecting pipe 112 to rotate together. When the third connecting pipe 112 rotates, it will drive the second connecting pipe 108 and the liquid outlet pipe 109 to rotate together. When the cutting fluid flows in the first connecting pipe 106, The cutting fluid enters the interior of the second connecting tube 108 through the third connecting tube 112, and then enters each liquid outlet pipe 109 through the second connecting tube 108 and sprays on the inner wall of the stainless steel tube. Because the liquid outlet pipe 109 is located inside the stainless steel tube at this time, the cutting fluid will spray from the inside of the stainless steel tube to the outside. When the cutting fluid lubricates and cools the inner wall of the stainless steel tube, it will also remove the debris generated by the processing, so that the debris is discharged to the outside of the stainless steel tube together with the cutting fluid; after the cutting fluid enters the liquid outlet pipe 109 through the liquid inlet pipe 107, the debris will be flushed from the inside of the stainless steel tube to the outside, thereby reducing the debris remaining inside the thread when the device processes the internal thread of the stainless steel tube, thereby improving the convenience of the device for cleaning the stainless steel tube.

[0025] See also Figure 4 and Figure 5As shown, a plurality of first elastic springs 2 are fixedly connected to the inner side wall of the first connecting tube 106; a first connecting plate 22 is fixedly connected to the end of the adjacent first elastic spring 2; a square plate 23 is fixedly connected to the top of the first connecting plate 22; the square plate 23 and the first connecting tube 106 are slidably connected and are arranged through; a plurality of first cleaning rods 24 are fixedly connected to the top of the square plate 23; when the cutting fluid flows inside the first connecting tube 106, the first connecting plate 22 will be affected by the water flow and slide along the first connecting tube 106, and the first connecting plate 22 will be in a stretched state when it moves. At the same time, the first connecting plate 22 will move with the square plate 23 and the first cleaning rod 24. When the first cleaning rod 24 moves, it will come into contact with the inner wall of the stainless steel tube. Because the first cleaning rod 24 is made of flexible material, the first cleaning rod 24 will bend when rubbing against the inner wall of the stainless steel tube and clean the inner wall of the stainless steel tube at the same time. Under the action of the water flow, the first connecting plate 22 will make the first cleaning rod 24 approach the inner wall of the stainless steel tube and clean it, further improving the cleaning ability of the device on the inner wall of the stainless steel tube, reducing the debris attached to the inner wall of the stainless steel tube, and reducing the influence of the debris accumulated on the inner wall of the stainless steel tube on the processing process.

[0026] See also Figure 4 and Figure 5 As shown, a plurality of first fixing grooves 3 are provided in the middle of the first connecting tube 106; a plurality of first spring telescopic rods 32 are fixedly connected in the middle of the first fixing grooves 3; a cross plate 33 is fixedly connected to the top of the adjacent first spring telescopic rods 32; a plurality of fixing holes 34 are provided in the middle of the cross plate 33; the fixing holes 34 and the first cleaning rod 24 are correspondingly arranged and slidably connected; when the first cleaning rod 24 slides along the first connecting tube 106 along with the first connecting plate 22, the first cleaning rod 24 will slide along the fixing holes 34 and rub against the fixing holes 34, and the fixing holes 34 will clean the debris attached to the surface of the first cleaning rod 24, so that the device can clean the first cleaning rod 24, and at the same time, when the first cleaning rod 24 contacts the inner wall of the stainless steel pipe, the first cleaning rod 24 will be supported by the fixing holes 34 and the bending curvature will be reduced, thereby increasing the contact area between the first cleaning rod 24 and the stainless steel pipe, and enhancing the cleaning effect of the first cleaning rod 24 on the stainless steel pipe.

[0027] See also Figure 3 and Figure 6As shown, a plurality of second spring telescopic rods 4 are fixedly connected to the middle of the fixing seat 105; a second connecting plate 42 is fixedly connected to the end of the adjacent second spring telescopic rod 4; a hole plate 43 is fixedly connected to the middle of the second connecting plate 42; the first connecting pipe 106 is located inside the hole plate 43; a first vertical plate 44 is fixedly connected to the end of the hole plate 43; a plurality of second elastic springs 46 are fixedly connected to the middle of the first vertical plate 44; a second vertical plate 45 is fixedly connected to the end of the adjacent second elastic spring 46; a plurality of first balls 47 are rotatably connected to the middle of the second vertical plate 45; when the fixing seat 105 moves toward the three-jaw chuck 103, it will also bring As the second spring telescopic rod 4 moves, the second spring telescopic rod 4 will move with the second connecting plate 42 and the orifice plate 43, and the orifice plate 43 will connect the first vertical plate 44 and the second vertical plate 45 to approach the stainless steel pipe. When the second vertical plate 45 moves, it will contact the outside of the three-jaw chuck 103. At this time, the stainless steel pipe will be inside the orifice plate 43. When the three-jaw chuck 103 rotates, the first ball 47 will also rotate under the action of friction, reducing the wear between the three-jaw chuck 103 and the second vertical plate 45 caused by friction. At the same time, the debris splashed when the device processes the stainless steel pipe will be intercepted by the orifice plate 43, reducing the debris remaining on the surface of the device.

[0028] See also Figures 6 to 9As shown, a pair of slide plates 5 are fixedly connected to the middle part of the orifice plate 43; the slide plate 5 is an arc-shaped structure; a plurality of third spring telescopic rods 52 are fixedly connected to the middle part of the three-jaw chuck 103; the ends of the third spring telescopic rods 52 are fixedly connected to the third connecting plate 53; a convex rod 54 is fixedly connected to the middle part of the third connecting plate 53; a plurality of second cleaning rods 55 are fixedly connected to the middle part of the third connecting plate 53; when the second connecting plate 42 approaches the three-jaw chuck 103, the slide plate 5 will also move together, and the convex rod 54 will come into contact with the slide plate 5, because when the three-jaw chuck 103 rotates, the third spring telescopic rod 52, the third connecting plate 53 and the convex rod 54 will be driven to rotate together, and the convex rod 54 will slide along the surface of the slide plate 5 when it rotates, because the slide plate 5 is an arc-shaped structure, so that the convex rod 54 will move along the second connecting plate 42 with the third connecting plate 53, and when the third connecting plate 53 moves, the length of the third spring telescopic rod 52 will change. When the protruding rod 54 moves to the end of the slide plate 5, it will fall off the edge of the slide plate 5 and reach the surface of the second connecting plate 42, and then the protruding rod 54 will continue to slide along the surface of the second connecting plate 42 until it contacts with another slide plate 5 and repeats the action, so that the third connecting plate 53 will reciprocate with the protruding rod 54, and the third connecting plate 53 will move with the second cleaning rod 55 when it moves. Because the second cleaning rod 55 is made of flexible material, the second cleaning rod 55 will bend when it contacts the orifice plate 43, and the second cleaning rod 55 will dredge and clean the surface of the orifice plate 43 when it contacts the orifice plate 43, thereby reducing the debris accumulated inside the orifice plate 43; the third connecting plate 53 will drive the second cleaning rod 55 to reciprocate along the orifice plate 43 with the protruding rod 54, and the second cleaning rod 55 will dredge and clean the orifice plate 43, thereby realizing the cleaning of the orifice plate 43 by the device, ensuring that the orifice plate 43 can intercept the debris and extend the service life of the orifice plate 43.

[0029] See also Figure 7 As shown, a pair of second fixing grooves 6 are provided in the middle of the second connecting plate 42; a plurality of damping springs 62 are fixedly connected in the middle of the second fixing grooves 6; baffles 63 are fixedly connected to the tops of the adjacent damping springs 62; when the protruding rod 54 slides off the edge of the slide plate 5, it will be accelerated by the elastic force of the third spring telescopic rod 52, so that the protruding rod 54 will hit the surface of the second connecting plate 42, and when the protruding rod 54 moves, it will contact and hit the baffle 63, and the baffle 63 will transfer the impact force to the damping spring 62 after being impacted, and the damping spring 62 will be quickly compressed under the impact and absorb the impact energy during the compression process, and then the damping spring 62 will transfer the attenuated impact force to the second connecting plate 42, thereby reducing the impact on the second connecting plate 42 and extending the service life of the second connecting plate 42.

[0030] See also Figure 7As shown, a plurality of vertical rods 7 are fixedly connected to the middle part of the baffle plate 63; a plurality of third fixing grooves 72 are provided in the middle part of the second fixing groove 6; the third fixing groove 72 and the vertical rod 7 are correspondingly arranged and are slidably matched; a plurality of flexible plates 73 are fixedly connected to the middle part of the third fixing groove 72; when the baffle plate 63 is impacted, it will move toward the second fixing groove 6 as the damping spring 62 is compressed, and the baffle plate 63 will move with the vertical rod 7 when it moves, and the vertical rod 7 will enter the interior of the third fixing groove 72 and contact the flexible plate 73 when it moves. Because the flexible plate 73 is made of flexible material and has a larger surface friction coefficient, the vertical rod 7 will be subjected to additional friction when sliding in the third fixing groove 72, thereby reducing the displacement amplitude of the vertical rod 7 and the baffle plate 63 when impacted. At the same time, the third fixing groove 72 can also fill the gap between the vertical rod 7 and the third fixing groove 72, thereby reducing the shaking of the vertical rod 7 when it moves, and also reducing the shaking amplitude of the baffle plate 63 when it is impacted.

[0031] See also Figure 6 As shown, a plurality of guide plates 8 are fixedly connected to the middle part of the second vertical plate 45; the guide plate 8 is an arc-shaped structure; when the second vertical plate 45 moves toward the three-jaw chuck 103, the guide plate 8 will come into contact with the surface of the stainless steel tube. Since the guide plate 8 is an arc-shaped structure, the stainless steel tube will continue to come into contact with the surface of the guide plate 8 until the second vertical plate 45 comes into contact with the three-jaw chuck 103, thereby reducing the direct contact between the second vertical plate 45 and the stainless steel tube when it moves, and reducing the interference effect of the second vertical plate 45 on the fixation of the stainless steel tube.

[0032] See also Figure 6 As shown, a plurality of second balls 9 are rotatably connected to the middle part of the guide plate 8; the second balls 9 are located between the first connecting tube 106 and the second vertical plate 45; when the stainless steel tube contacts the guide plate 8, the second balls 9 will also contact the second balls 9, and the second balls 9 will rotate under the action of friction, so that the sliding friction between the stainless steel tube and the guide plate 8 is converted into rolling friction, thereby reducing the friction between the stainless steel tube and the guide plate 8 and reducing the scratches or damage on the surface of the stainless steel tube caused by friction.

[0033] See also Figure 2 As shown, a collecting box 1001 is fixedly connected to the middle of the fixing seat 105; a filter pad 1002 is fixedly connected to the inner wall of the collecting box 1001; when the device processes the stainless steel pipe, the cutting waste liquid and the splashed debris will flow out from the surface of the second connecting plate 42, and these solid-liquid mixtures will reach the interior of the collecting box 1001 and be filtered by the filter pad 1002. The filter pad 1002 will filter the mixed debris, and the cutting waste liquid will reach the interior of the collecting box 1001, thereby realizing the separation and collection of the debris and the cutting waste liquid by the device, and improving the utilization rate of the device.

[0034] Working principle: The stainless steel pipe is put into the three-jaw chuck 103 and fixed, and then the device is started to start the electric push rod 104. After the electric push rod 104 is started, it will drive the fixing seat 105 to bring the first connecting pipe 106 close to the stainless steel pipe. When the first connecting pipe 106 moves, it will move with the tool 111. At the same time, the power component 102 will rotate with the three-jaw chuck 103 and the stainless steel pipe. When the tool 111 comes into contact with the stainless steel pipe, the inner wall of the stainless steel pipe will be processed with internal threads. At the same time, the staff can connect the liquid inlet pipe 107 to an external water pump so that the cutting fluid flows from the liquid inlet pipe 107 to the first connecting pipe 1 06, when the cutting fluid flows inside the first connecting tube 106, the auger 110 will rotate under the action of the water flow, and when the auger 110 rotates, it will also drive the third connecting tube 112 to rotate together, and when the third connecting tube 112 rotates, it will drive the second connecting tube 108 and the liquid outlet pipe 109 to rotate together. When the cutting fluid flows inside the first connecting tube 106, it will enter the inside of the second connecting tube 108 through the third connecting tube 112, and then enter each liquid outlet pipe 109 through the second connecting tube 108 and spray on the inner wall of the stainless steel tube. Because the liquid outlet pipe 109 is located inside the stainless steel tube at this time, the cutting fluid will be sprayed from the inside of the stainless steel tube. When the cutting fluid lubricates and cools the inner wall of the stainless steel pipe, it can also remove the debris generated by the processing, so that the debris is discharged to the outside of the stainless steel pipe together with the cutting fluid; when the cutting fluid flows inside the first connecting pipe 106, the first connecting plate 22 will be affected by the water flow and slide along the first connecting pipe 106. When the first connecting plate 22 moves, the first elastic spring 2 will be in a stretched state. At the same time, the first connecting plate 22 will move with the square plate 23 and the first cleaning rod 24. When the first cleaning rod 24 moves, it will come into contact with the inner wall of the stainless steel pipe. Because the first cleaning rod 24 is made of flexible material, the first cleaning rod 24 When the first cleaning rod 24 rubs against the inner wall of the stainless steel pipe, it bends and cleans the inner wall of the stainless steel pipe at the same time; when the first cleaning rod 24 slides along the first connecting pipe 106 along with the first connecting plate 22, the first cleaning rod 24 slides along the fixing hole 34 and rubs against the fixing hole 34, and the fixing hole 34 cleans the debris attached to the surface of the first cleaning rod 24, so that the device cleans the first cleaning rod 24. At the same time, when the first cleaning rod 24 contacts the inner wall of the stainless steel pipe, the first cleaning rod 24 is supported by the fixing hole 34 and the curvature of the bending is reduced, thereby increasing the contact area between the first cleaning rod 24 and the stainless steel pipe;When the fixed seat 105 moves toward the three-jaw chuck 103, it will also move with the second spring telescopic rod 4, and the second spring telescopic rod 4 will move with the second connecting plate 42 and the orifice plate 43, and the orifice plate 43 will connect the first vertical plate 44 and the second vertical plate 45 to approach the stainless steel pipe. When the second vertical plate 45 moves, it will contact the three-jaw chuck 103. At this time, the stainless steel pipe will be inside the orifice plate 43. When the device processes the stainless steel pipe, the flying debris will be intercepted by the orifice plate 43, reducing the debris remaining on the surface of the device. At the same time, when the tool 111 grinds the inner wall of the stainless steel pipe, it will shake slightly under the extrusion, and the force will be transmitted to the second connecting plate 4 through the first connecting pipe 106. 2 and the orifice plate 43, and then transmitted to the first vertical plate 44 and the second elastic spring 46. When the first vertical plate 44 shakes, the second elastic spring 46 will be in a bent state. The second elastic spring 46 will absorb this part of kinetic energy and reduce the shaking of the second vertical plate 45 when it is working; when the second connecting plate 42 approaches the three-jaw chuck 103, the slide plate 5 will also move together, and the protruding rod 54 will come into contact with the slide plate 5, because when the three-jaw chuck 103 rotates, it will drive the third spring telescopic rod 52 and the third connecting plate 53 and the protruding rod 54 to rotate together, and the protruding rod 54 will slide along the surface of the slide plate 5 when it rotates. Because the slide plate 5 is an arc-shaped structure, the protruding rod 54 will bring the third connecting plate 53 together When the third connecting plate 53 moves along the second connecting plate 42, the length of the third spring telescopic rod 52 will change. When the protruding rod 54 moves to the end of the sliding plate 5, it will fall off the edge of the sliding plate 5 and reach the surface of the second connecting plate 42. Then the protruding rod 54 will continue to slide along the surface of the second connecting plate 42 until it contacts with another sliding plate 5 and repeats the action, so that the third connecting plate 53 will reciprocate with the protruding rod 54. When the third connecting plate 53 moves, it will move with the second cleaning rod 55. Because the second cleaning rod 55 is made of flexible material, the second cleaning rod 55 will bend when it contacts with the orifice plate 43, and the second cleaning rod 55 will contact the orifice plate 43. 3, and the surface is unblocked and cleaned to reduce the debris accumulated inside the orifice plate 43; when the protruding rod 54 slides down from the edge of the slide plate 5, it will be accelerated by the elastic force of the third spring telescopic rod 52, so that the protruding rod 54 will hit the surface of the second connecting plate 42, and when the protruding rod 54 moves, it will contact and hit the baffle 63, and the baffle 63 will transfer the impact force to the damping spring 62 after being impacted, and the damping spring 62 will be quickly compressed under the impact and absorb the impact energy during the compression process, and then the damping spring 62 will transfer the attenuated impact force to the second connecting plate 42, so as to reduce the impact on the second connecting plate 42 and extend the service life of the second connecting plate 42;When the baffle plate 63 is impacted, it will move toward the second fixed groove 6 as the damping spring 62 is compressed. When the baffle plate 63 moves, it will move with the vertical rod 7. When the vertical rod 7 moves, it will enter the inside of the third fixed groove 72 and come into contact with the flexible plate 73. Because the flexible plate 73 is made of flexible material, the surface friction coefficient is larger, so that the vertical rod 7 will be subjected to additional friction when sliding inside the third fixed groove 72, reducing the displacement amplitude of the vertical rod 7 and the baffle plate 63 when they are impacted. At the same time, the third fixed groove 72 can also fill the gap between the vertical rod 7 and the third fixed groove 72, reducing the shaking of the vertical rod 7 when it moves, and also reducing the shaking amplitude of the baffle plate 63 when it is impacted; when the second vertical plate 45 moves toward the three-jaw chuck 103, the guide plate 8 will come into contact with the surface of the stainless steel pipe. Because the guide plate 8 is an arc-shaped structure, the stainless steel pipe will continue to contact the surface of the guide plate 8 until the second vertical plate 45 and the three-jaw chuck are in contact. The disc 103 contacts with the second vertical plate 45, reducing the direct contact between the second vertical plate 45 and the stainless steel pipe when it moves, and reducing the interference of the second vertical plate 45 on the fixation of the stainless steel pipe; when the stainless steel pipe contacts the guide plate 8, it will also contact the second ball 9, and the second ball 9 will rotate under the friction, so that the sliding friction between the stainless steel pipe and the guide plate 8 is converted into rolling friction, reducing the friction between the stainless steel pipe and the guide plate 8, and reducing the scratches or damage left on the surface of the stainless steel pipe due to friction; when the device processes the stainless steel pipe, the cutting waste liquid and the splashing debris will flow out from the surface of the second connecting plate 42, and these solid-liquid mixtures will reach the inside of the collection box 1001 and be filtered by the filter pad 1002, and the filter pad 1002 will filter the mixed debris, and the cutting waste liquid will reach the inside of the collection box 1001, so that the device can separate and collect the debris and cutting waste liquid, and improve the utilization rate of the device. ;

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A stainless steel pipe internal thread processing device, comprising a machine tool body (1), characterized in that: A power assembly (102) is installed in the middle of the machine tool body (1); a three-jaw chuck (103) is installed in the middle of the power assembly (102); an electric push rod (104) is fixedly connected to the middle of the machine tool body (1); an output end of the electric push rod (104) is fixedly connected to a fixing seat (105); the fixing seat (105) and the machine tool body (1) are slidably connected; a first connecting pipe (106) is fixedly connected to the middle of the fixing seat (105); a liquid inlet pipe (107) is connected to the middle of the first connecting pipe (106); The inner side wall of the first connecting tube (106) is rotatably connected to an auger (110); the end of the auger (110) is fixedly connected to a third connecting tube (112); the third connecting tube (112) and the first connecting tube (106) are both rotatably connected; the middle of the third connecting tube (112) is connected to a second connecting tube (108); the middle of the second connecting tube (108) is connected to a plurality of liquid outlet tubes (109); the liquid outlet tubes (109) are arranged in an arc shape; and the middle of the first connecting tube (106) is fixedly connected to a cutter (111).

2. A stainless steel pipe internal thread processing device according to claim 1, characterized in that: A plurality of first elastic springs (2) are fixedly connected to the inner side wall of the first connecting tube (106); the ends of adjacent first elastic springs (2) are fixedly connected to first connecting plates (22); a square plate (23) is fixedly connected to the top of the first connecting plate (22); the square plate (23) and the first connecting tube (106) are slidably connected and are arranged to penetrate; and a plurality of first cleaning rods (24) are fixedly connected to the top of the square plate (23).

3. A stainless steel pipe internal thread processing device according to claim 2, characterized in that: A plurality of first fixing grooves (3) are formed in the middle of the first connecting tube (106); a plurality of first spring telescopic rods (32) are fixedly connected in the middle of the first fixing grooves (3); a transverse plate (33) is fixedly connected to the top of the adjacent first spring telescopic rods (32); a plurality of fixing holes (34) are formed in the middle of the transverse plate (33); the fixing holes (34) and the first cleaning rods (24) are arranged correspondingly and are slidably matched.

4. A stainless steel pipe internal thread processing device according to claim 3, characterized in that: A plurality of second spring telescopic rods (4) are fixedly connected in the middle of the fixing seat (105); a second connecting plate (42) is fixedly connected at the end of the second spring telescopic rod (4); a perforated plate (43) is fixedly connected in the middle of the second connecting plate (42); the first connecting pipe (106) is located inside the perforated plate (43); a first vertical plate (44) is fixedly connected at the end of the perforated plate (43); a plurality of second elastic springs (46) are fixedly connected in the middle of the first vertical plate (44); an end of the second elastic spring (46) is fixedly connected to the second vertical plate (45); and a plurality of first balls (47) are rotatably connected in the middle of the second vertical plate (45).

5. A stainless steel pipe internal thread processing device according to claim 4, characterized in that: A pair of slide plates (5) are fixedly connected to the middle of the orifice plate (43); a plurality of third spring telescopic rods (52) are fixedly connected to the middle of the three-jaw chuck (103); a third connecting plate (53) is fixedly connected to the end of the third spring telescopic rod (52); a convex rod (54) is fixedly connected to the middle of the third connecting plate (53); and a plurality of second cleaning rods (55) are fixedly connected to the middle of the third connecting plate (53).

6. A stainless steel pipe internal thread processing device according to claim 5, characterized in that: A pair of second fixing grooves (6) are formed in the middle of the second connecting plate (42); a plurality of damping springs (62) are fixedly connected in the middle of the second fixing grooves (6); and baffles (63) are fixedly connected to the tops of adjacent damping springs (62).

7. A stainless steel pipe internal thread processing device according to claim 6, characterized in that: A plurality of vertical rods (7) are fixedly connected to the middle of the baffle (63); a plurality of third fixed grooves (72) are provided in the middle of the second fixed groove (6); the third fixed grooves (72) and the vertical rods (7) are correspondingly arranged and slidably matched; a plurality of flexible plates (73) are fixedly connected to the middle of the third fixed groove (72).

8. A stainless steel pipe internal thread processing device according to claim 7, characterized in that: A plurality of guide plates (8) are fixedly connected to the middle portion of the second vertical plate (45); the guide plates (8) are of an arc-shaped structure.

9. A stainless steel pipe internal thread processing device according to claim 8, characterized in that: A plurality of second balls (9) are rotatably connected to the middle of the guide plate (8); the second balls (9) are located between the first connecting tube (106) and the second vertical plate (45).

10. A stainless steel pipe internal thread processing device according to claim 9, characterized in that: A collection box (1001) is fixedly connected to the middle of the fixing seat (105); and a filter pad (1002) is fixedly connected to the inner wall of the collection box (1001).

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